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3 years ago

Give examples of a 100% increase, 100% decrease, and 100% error. Explain each.

Mathematics

1 answer:

lakkis [162]3 years ago

4 0

Answer:

100% increase from 100 is 200, the difference is 100.

100% decrease from 100 is 0, the difference is -100

error means that you were quite a long way off from the true value.

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A rocket travels in a trajectory given by the equation s = -4.9t 2 + v0t, where s is meters above ground, t is time in seconds a

Reptile [31]

Step-by-step explanation:

s = -4.9t² + 49t

The vertex of the parabola is at t = -b/(2a).

t = -49 / (2 × -4.9)

t = 5

The rocket reaches its maximum height after 5 seconds.

5 0

3 years ago

Simplify (3x² + 2y² - 5x + y) + (2x² - 2xy - 2y² - 5x + 3y).

prohojiy [21]

The simplified form for (3x² + 2y² - 5x + y) + (2x² - 2xy - 2y² -5x + 3y) is (5x² + 0y² - 10x + 4y - 2xy).

<h3>A quadratic equation is what?</h3>

At least one squared term must be present because a quadratic is a second-degree polynomial equation. It is also known as quadratic equations. The answers to the issue are the values of the x that satisfy the quadratic equation. These solutions are called the roots or zeros of the quadratic equations. The solutions to the given equation are any polynomial's roots. A polynomial equation with a maximum degree of two is known as a quadratic equation, or simply quadratics.

<h3>How is an equation made simpler?</h3>

The equation can be made simpler by adding up all of the coefficients for the specified correspondent term through constructive addition or subtraction of terms, as suggested in the question.

Given, the equation is (3x² + 2y² - 5x + y) + (2x² - 2xy - 2y² -5x + 3y)
Removing brackets and the adding we get,
3x² + 2x² + 2y² - 2y² + (- 5x) + (- 5x) + y + 3y + (- 2xy) = (5x² + 0y² - 10x + 4y - 2xy)

To learn more about quadratic equations, tap on the link below:
brainly.com/question/1214333

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1 year ago

In 1 and 2, list multiples of each number to find the LCM of each pair of number.

Tanya [424]

Multiples of 2:

2, 4, 6, 8, <u>10</u>, 12, 14, 16, 18, 20,...

Multiples of 5:

5, <u>10</u>, 15, 20, 25, 30, 35, 40, ...

Multiples of 6:

6, 12, 18, 24, <u>30</u>, 36, 42, 48, 54, 60, ...

Multiples of 10:

10, 20, <u>30</u>, 40, 50, 60, ...

6 0

2 years ago

Given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)

Anit [1.1K]

<u>Your question: </u>given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)

The correct answer would be D $\sqrt{3}$

5 0

3 years ago

5 squares are placed end to end as below (see pic). What is the perimeter of the rectangle formed by the squares?

Nataly_w [17]

2b: If x is 2.1, then one side of the rectangle is 2.1, and another is 2.1*5=10.5. Thus, the perimeter is 2*(2.1+10.5)=2*12.6=25.2.

3: One side of the square with side-length three will not be on the outside, so we have 3*3=9 inches perimeter from the square of side-length 3. The square of side-length 6 has 3 from the top side missing from the outer perimeter, because it coincides with a side of the square of side-length three. This square contributes 6*4-3=33 inches. The total perimeter is 33+9=42 inches.

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3 years ago